Not just the files still open, but if they are opened, edited and closed without saving, (I've done it hundreds of times to get the right "snippet" of code).. they will not be in the recent files list.

I am using Windows 7 x64, and I am not having any other registry problems. This is a new work laptop.

I open the files by using the file explorer panel. I am opening CFM, CFC, JS, and CSS files while in code view. And I code while i'm there. I close the files by clicking on the 'X' or CTRL+W. The number of files I have open varies.